Membrane filters Regenerated cellulosePORAFIL®RC
Membranes of regenerated cellulose are resistant towards most organic solvents. They are, for example, used for filtration of solvent mixtures and ultrapurification and degassing of HPLC eluents.
Membrane filters ReliaDisc™, cellulose nitrate
Filter membranes with grid lines for easy colony counting. For microbiological analysis of water, food and beverage application in the pH range 4-8.SterileMaximum thermal stability 130 °C
Membrane filters type 111, cellulose acetate, sterile
White, individually sterile packed. Resistant to steam sterilisation up to 134 °C, or in dry heat up to 180 °C. Very low adsorption (important when filtering proteinaceous solutions). Suitable for particle removal and ultracleaning of aqueous solutions, methanol, ethanol, high-grade alcohols and residue analysis of fuels and oils. The extractable content of these filters make up < 1 % of their weight. Other pore sizes and formats available on request.Other patterns are available on request.
Membrane filters type 113, cellulose nitrate
White. Very low content of extractable materials. Weight constant after 60 minutes of drying at 105 °C. Suitable for residue analysis, microscopic viewing in incident or transmitted light, chemotaxis, x-ray fluorescence, spectrometry and gravimetric analysis. Autoclavable at 121 °C. Other pore sizes and formats are available on request.Other patterns are available on request.
Membrane filters type 113, cellulose nitrate
White. Very low content of extractable materials. Weight constant after 60 minutes of drying at 105 °C. Suitable for residue analysis, microscopic viewing in incident or transmitted light, chemotaxis, x-ray fluorescence, spectrometry and gravimetric analysis. Autoclavable at 121 °C. Other pore sizes and formats are available on request.
Membrane filters type 113, cellulose nitrate, sterile
White, individually sterile packed. Very low content of extractable materials. Weight constant after 60 minutes of drying at 105 °C. Suitable for residue analysis, microscopic viewing in incident or transmitted light, chemotaxis, x-ray fluorescence, spectrometry and gravimetric analysis. Autoclavable at 121 °C. Other pore sizes and formats are available on request.Other patterns are available on request.
Membrane filters Type 130, cellulose nitrate
Gray membrane (after wetting, black) with white grid, for detection of yeasts and molds, particle count and microscopy, individually, sterile packaged / non sterile.Other types available on request.
Membrane filters type 131, hydrophobic edged cellulose nitrate, with 3 mm edge
Cellulose nitrate (cellulose ester) membrane filters, white with black grid, for colony count and sterility testing, individually, sterile packaged / non-sterile.
Membrane filters type 131, hydrophobic edged cellulose nitrate, with 6 mm edge
Cellulose nitrate (cellulose ester) membrane filters, white with black grid, for colony count and sterility testing, individually, sterile packaged / non-sterile.
Membrane filters type 135, hydrophobic edged cellulose acetate
Cellulose acetate membrane filters, white with black grid, 3 mm hydrophobic edge, for colony count and sterility testing, individually, sterile packaged.Other patterns are available on request.
Membrane filters, blotting, Polycarbonate
Type 230. Polycarbonate (PC), white, non-sterile. Ultrapure, polycarbonate membrane with especially smooth surface and fine pore distribution. Applications include COD/TOC testing, particle analysis or epifluorescence microscopy.Other patterns are available on request.
Membrane filters, cellulose acetate
Type 111. Resistant to steam sterilisation up to 134 °C, or in dry heat up to 180 °C. Very low adsorption (important when filtering proteinaceous solutions). Suitable for particle removal and ultracleaning of aqueous solutions, methanol, ethanol, high-grade alcohols and residue analysis of fuels and oils. The extractable content of these filters make up <1% of their weight. Other pore sizes and formats available on request.Other patterns are available on request.
Membrane Filters, cellulose acetate, non sterile
Recommended for aqueous samples, biological applications and protein filtration.Compatible to aqueous solutions with pH 4-8, most alcohols, hydrocarbons and oilsFiltration of aqueous solutions for biological and clinical analysisSterilisation of biological solutions (CA-membranes with a pore size of 0.2 µm are specially recommended when the recovery of proteins is critical)High thermal stability: 180 °CVery low nonspecific adsorption
Membrane filters, Cellulose mixed ester
Composed of cellulose acetate (~20 %) and cellulose nitrate (~80 %).
Membrane Filters, Cellulose Nitrate, non-sterile
Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle countsQualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solventsHigh non-specific adsorption: 160 µg/cm² for gamma-GlobulinMaximum temperature 130 °CRecommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle countsQualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solventsHigh non-specific adsorption: 160 µg/cm² for gamma-GlobulinMaximum temperature 130 °C
Membrane filters, cellulose nitrate, sterile
Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle countsQualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solventsHigh non-specific adsorption: 160 µg/cm² for gamma-GlobulinMaximum temperature 130 °CRecommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle countsQualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solventsHigh non-specific adsorption: 160 µg/cm² for gamma-GlobulinMaximum temperature 130 °C
Membrane Filters, Cellulose nitrate, WCN
Plain white. Circles.ApplicationFor prefiltration and dust measurement, clarification and filtrationFiltration of aqueous solutionsPropertiesVery easily wettableHydrophilicUsed up to 125 °CAutoclavable (121 °C)
Membrane Filters, Cyclopore™, PC
Membrane filters Cyclopore™ polycarbonate are true pore size microporous membranes featuring the sharp cut-off and reproducible microfiltration characteristics of track-etched membrane filters.Low affinity for stains improves visibility under a microscopeLow protein binding minimizes sample loss of proteinaceous samplesNarrow pore size distribution and high pore density support rapid surface capture of analyteNegligible absorption and adsorption of filtrate; nonhygroscopicNo particle shedding enables clean filtrateBiologically inertFilters are autoclavable for 30 min at 121 °C
Membrane filters, Grade AC, Cellulose acetate
White. Hydrophilic membrane filter suitable for particle filtration of aqueous solutions, protein filtration and clarification of biological fluids.Very low binding characteristicsGood mechanical stabilityCan be used up to 135 °CNon-sterile
Membrane filters, Grade AE, made from pure cellulose nitrate
Very easily wettedFor aqueous solutionsHydrophilicCan be used up to 125 °CAutoclavable up to 121 °CApplications: For prefiltration and dust measurement, clarification and sterile filtration.
Membrane filters, Grade MCE, mixed cellulose esters
Sterile or non-sterile.-* Nitrocellulose membrane
Membrane filters, Grade ME, made from mixed cellulose esters
Applications:Excellent for gravimetrical analysisEspecially for aqueous solutionsIdeally suitable for contamination testProperties:EconomicalConstant weightHydrophilicNot sterileCan be used up to 125 °CAutoclavable up to 121 °C
Membrane filters, Grade ME, mixed cellulose esters
Applications:For microbiological analysis (sterile with grid)Properties:0.45 µm pore size, 100 % microbe retention of serratiamarcescens1.2 µm pore size for microbiological control of yeasts
Membrane filters, Grade NC, made from cellulose nitrate
Applications:For prefiltration and dust measurement, clarification and sterile filtrationFor aqueous solutionsProperties:Very easily wettedHydrophilicCan be used up to 125 °CAutoclavable up to 121 °C